Suppose You Conduct a Survey of 100 Teenage Boys, Asking

question 25

Multiple Choice

Suppose you conduct a survey of 100 teenage boys, asking them whether or not they used contraception at their first experience of sexual intercourse. If this group was typical, you should expect that about ____ of these boys report that they DID use contraception.

• A) 98%
• B) 85%
• C) 65%
• D) 45%

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Definitions:

Reliability

The consistency and stability of a measurement over time, indicating the degree to which an instrument or procedure repeatedly produces the same result under the same conditions.

Reactivity

The phenomenon where subjects alter their behavior due to the awareness of being observed.

Variability

The amount of dispersion of scores about some central value.

Pearson Product-moment

A correlation coefficient that measures the linear correlation between two variables, indicating the strength and direction of their relationship.